View source for Aegilops

{{Treatment/ID
|accepted_name=Aegilops
|accepted_authority=L.
|publications=
|basionyms=
|synonyms=
|hierarchy=Poaceae;Poaceae subfam. Pooideae;Poaceae tribe Triticeae;Aegilops
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Poaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Poaceae subfam. Pooideae]]</div><div class="higher-taxon"><small>tribe</small>[[Poaceae tribe Triticeae]]</div><div class="higher-taxon"><small>genus</small>[[Aegilops]]</div></div>
|volume=Volume 24
|mention_page=
|treatment_page=page 261
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism duration;whole_organism growth form"><b>Plants </b>annual.</span> <span class="statement" id="st-d0_s1" data-properties="culm some measurement;culm pubescence;culm orientation;culm shape;node atypical quantity;node atypical quantity;node quantity"><b>Culms </b>14-80 cm, usually glabrous, erect or geniculate at the base, with (1) 2-4 (5) nodes.</span> <span class="statement" id="st-d0_s2" data-properties="sheath architecture"><b>Sheaths </b>open;</span> <span class="statement" id="st-d0_s3" data-properties="auricle architecture or pubescence or shape">auricles ciliate;</span> <span class="statement" id="st-d0_s4" data-properties="ligule some measurement;ligule texture;ligule architecture or shape">ligules 0.2-0.8 mm, membranous, truncate;</span> <span class="statement" id="st-d0_s5" data-properties="blade width;blade shape;blade prominence or shape;blade orientation">blades 1.5-10 mm wide, linear to linear-lanceolate, flat, spreading.</span> <span class="statement" id="st-d0_s6" data-properties="spikelet quantity;spikelet quantity;spikelet quantity;spikelet prominence"><b>Inflorescences </b>terminal spikes, with 2-13 spikelets, usually with 1-3 additional rudimentary spikelets at the base;</span> <span class="statement" id="st-d0_s7" data-properties="">internodes 6-12 mm;</span> <span class="statement" id="st-d0_s8" data-properties="internode some measurement;spikelet life cycle;spikelet fixation">disarticulation either at the base of the spikes or in the rachises, the spikelets falling attached to the internodes above or below.</span> <span class="statement" id="st-d0_s9" data-properties="spikelet architecture or arrangement or growth form;spikelet length;spikelet structure subtype;spikelet orientation;spikelet orientation;upper spikelet reproduction"><b>Spikelets </b>solitary at each node, 72-2 (3) times the length of the internodes, tangential to the rachis, appressed or ascending, the upper spikelet (s) sometimes sterile;</span> <span class="statement" id="st-d0_s10" data-properties="spikelet reproduction;spikelet some measurement;floret quantity;distal floret reproduction">fertile spikelets 5-15 mm, with 2-7 florets, the distal florets often sterile.</span> <span class="statement" id="st-d0_s11" data-properties="glume shape;glume shape;glume pubescence;glume pubescence;vein quantity;vein prominence;midvein architecture or pubescence or relief;apex shape;apex shape;apex shape;apex shape;apex shape;apex texture"><b>Glumes </b>ovate to rectangular, rounded on the back, scabrous or pubescent, with several prominent veins, midveins smooth throughout, apices truncate, toothed, or awned, sometimes indurate at maturity;</span> <span class="statement" id="st-d0_s12" data-properties="lemma shape;apex shape;apex architecture or shape">lemmas rounded on the back, apices toothed, frequently awned;</span> <span class="statement" id="st-d0_s13" data-properties="palea pubescence or texture;palea shape;keel architecture or pubescence or shape">paleas chartaceous, 2-keeled, keels ciliate;</span> <span class="statement" id="st-d0_s14" data-properties="anther quantity;anther some measurement;anther shape">anthers 3, 1.5-4 mm, not penicillate;</span> <span class="statement" id="st-d0_s15" data-properties="apex pubescence">ovaries with pubescent apices.</span> <span class="statement" id="st-d0_s16" data-properties="x chromosome quantity"><b>Caryopses </b>lanceolate to lanceolate-ovate, x = 7.</span> <span class="statement" id="st-d0_s17" data-properties="caryopse shape;caryopse shape"><b>Haplomes </b>B, C, D, S, T, U, M, N.</span><!--

-->{{Treatment/Body
|distribution=Wash.;W.Va.;Wyo.;N.Mex.;Tex.;La.;Tenn.;N.Y.;Ariz.;Calif.;Oreg.;Va.;Nev.;Colo.;Idaho;Mont.;Ala.;Kans.;N.Dak.;Nebr.;Okla.;S.Dak.;Ark.;Ill.;Ind.;Iowa;Md.;Pa.;Ohio;Utah;Mo.;Mich.;Ky.
|discussion=<p>Aegilops has about 23 species, and is native to the Canary Islands, as well as from the Mediterranean region to central Asia. It is sometimes included in Triticum because the two form natural hybrids and both are involved in the evolution of the cultivated wheats, including T. aestivum. They are treated as distinct genera here, in keeping both with past practice and with their differing ecological attributes, Aegilops being a weedy genus.</p><!--
--><p>Four species are established in the Flora region; only Aegilops cylindrica is widespread. The introductions occurred at the end of the nineteenth or beginning of the twentieth century. Three other species have been collected in the region; they are not known to have persisted.</p><!--
--><p>In the key and descriptions, spike and spikelet lengths exclude the rudimentary spikelets and awns.</p>
|tables=
|references={{Treatment/Reference
|id=kimber1987a
|text=Kimber, G. and M. Feldman. 1987. Wild Wheat: An Introduction. Special Report No. 353. College of Agriculture, University of Missouri-Columbia, Columbia, Missouri, U.S.A. 142 pp.
}}{{Treatment/Reference
|id=slageren1994a
|text=Slageren, M.W. van. 1994. Wild Wheats: A Monograph of Aegilops L. and Amblyopyrum (Jaub. & Spach) Eig. Wageningen Agricultural University Papers 94-7. Wageningen Agricultural University and International Center for Agricultural Research in the Dry Areas (ICARDA), Wageningen, The Netherlands and Aleppo, Syria. 512 pp.
}}
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Glumes unawned, or with a single awn to 2 cm long; spikes narrowly cylindrical to moniliform, not ovoid; disarticulation in the rachises, the spikelets falling attached to the internodes above.
|[[#key-0-2| > 2]]
|-id=key-0-2
|2
|Spikes cylindrical to slightly moniliform
|[[Aegilops tauschii|Aegilops tauschii]]
|-id=key-0-2
|2
|Spikes distinctly moniliform.
|[[#key-0-3| > 3]]
|-id=key-0-3
|3
|Glumes mostly glabrous, the veins setulose; lemmas of the apical spikelets with awns to 4 cm long; spikelets with 2-5 florets, the distal 1 or 2 sterile
|[[Aegilops ventricosa|Aegilops ventricosa]]
|-id=key-0-3
|3
|Glumes appressed-velutinous; lemmas of the apical spikelets with awns 3-8.5 cm long; spikelets with 4-7 florets, the distal 2 sterile
|[[Aegilops crassa|Aegilops crassa]]
|-id=key-0-1
|1
|Some glumes with awns 2-8 cm long; spikes narrowly cylindrical to ovoid, not moniliform; disarticulation near the base of the spikes, at least initially.
|[[#key-0-2| > 2]]
|-id=key-0-4
|4
|Spikes narrowly cylindrical, about 0.3 cm wide
|[[Aegilops cylindrica|Aegilops cylindrica]]
|-id=key-0-4
|4
|Spikes subcylindrical to ovoid, widest at the base, 0.4-1.3 cm wide.
|[[#key-0-5| > 5]]
|-id=key-0-5
|5
|Upper spikelets 7-9 mm long; lemmas of the lower fertile florets with 2-3 teeth, 1 tooth sometimes extending into an awn up to 10 mm long
|[[Aegilops triuncialis|Aegilops triuncialis]]
|-id=key-0-5
|5
|Upper spikelets 4-5 mm long; lemmas of the fertile florets 2-3-awned, awns 5-40 mm long.
|[[#key-0-6| > 6]]
|-id=key-0-6
|6
|Rudimentary spikelet(s) usually 1, occasionally 2; spikes gradually tapering distally
|[[Aegilops geniculate|Aegilops geniculate]]
|-id=key-0-6
|6
|Rudimentary spikelets 3, occasionally 2; spikes abruptly contracted distally to a narrow cylinder
|[[Aegilops neglecta|Aegilops neglecta]]
|}
</div></div><!--

-->{{#Taxon:
name=Aegilops
|author=Sandra M. Saufferer;
|authority=L.
|rank=genus
|parent rank=tribe
|synonyms=
|basionyms=
|family=Poaceae
|illustrator=Cindy Roché
|illustration copyright=Utah State University
|distribution=Wash.;W.Va.;Wyo.;N.Mex.;Tex.;La.;Tenn.;N.Y.;Ariz.;Calif.;Oreg.;Va.;Nev.;Colo.;Idaho;Mont.;Ala.;Kans.;N.Dak.;Nebr.;Okla.;S.Dak.;Ark.;Ill.;Ind.;Iowa;Md.;Pa.;Ohio;Utah;Mo.;Mich.;Ky.
|reference=kimber1987a;slageren1994a
|publication title=
|publication year=
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V24/V24_375.xml
|subfamily=Poaceae subfam. Pooideae
|tribe=Poaceae tribe Triticeae
|genus=Aegilops
|anther quantity=3
|anther shape=not penicillate
|anther some measurement=1.5mm;4mm
|apex architecture or shape=awned
|apex pubescence=pubescent
|apex shape=toothed;awned;toothed;awned;toothed;truncate
|apex texture=indurate
|auricle architecture or pubescence or shape=ciliate
|blade orientation=spreading
|blade prominence or shape=flat
|blade shape=linear;linear-lanceolate
|blade width=1.5mm;10mm
|caryopse shape=u;lanceolate;lanceolate-ovate
|culm orientation=erect
|culm pubescence=glabrous
|culm shape=geniculate
|culm some measurement=14cm;80cm
|distal floret reproduction=sterile
|floret quantity=2;7
|glume pubescence=pubescent;scabrous
|glume shape=rounded;ovate;rectangular
|internode some measurement=6mm;12mm
|keel architecture or pubescence or shape=ciliate
|lemma shape=rounded
|ligule architecture or shape=truncate
|ligule some measurement=0.2mm;0.8mm
|ligule texture=membranous
|midvein architecture or pubescence or relief=smooth
|node atypical quantity=5;1
|node quantity=2;4
|palea pubescence or texture=chartaceous
|palea shape=2-keeled
|sheath architecture=open
|spikelet architecture or arrangement or growth form=solitary
|spikelet fixation=attached
|spikelet length=72-2(3) times the length of
|spikelet life cycle=falling
|spikelet orientation=ascending;appressed
|spikelet prominence=rudimentary
|spikelet quantity=additional;1;3
|spikelet reproduction=fertile
|spikelet some measurement=5mm;15mm
|spikelet structure subtype=tangential
|upper spikelet reproduction=sterile
|vein prominence=prominent
|vein quantity=several
|whole_organism duration=annual
|whole_organism growth form=plant
|x chromosome quantity=7
}}<!--

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